randall



(No Model.)

J. w. RANDALL. DISK HOLDER FOR VALVES. No. 485,984. Patented Nov.8,1892.

J[ Zg/ Kg 1- Z 611/ j] WITNESSES: a INVENTOI? g UNITED STATES PATENTOFFICE.

JOHN W. RANDALL, OF NEW YORK, N. Y.

DISK-HOLDER FOR VALVES.

SPECIFICATION forming part of Letters Patent No. 485,984, dated November8, 1892.

Application filed July 1. 1892. Serial N0.438,688. (N0 model.)

To all whom it may concern:

Be it known that 1, JOHN W. RANDALL, of the city, county, and State ofNewYork, have invented a new and useful Improvement in Valves, of whichthe followingis a full, clear, and exact description.

The object of the invention is to provide a new and improved valve whichis simple and durable in construction, arranged toleave the seat-openingtotally unobstructed when the valve is unseated, and to prevent thefastening device for the valve from aceidently becoming loose ordetached.

The invention consists of certain parts and details and combinations ofthe same, as will be hereinafter described, and then pointed out in theclaim.

Reference is to be had to the accompanying drawings, forming a partofthis specification, in which the figure is a vertical central section ofthe valve with my improvements applied.

A is the valve-body formed with the raised valve-seat B, on which theclosing-ring G of the valve E is adapted to be seated. This ring 0 seatson the inwardly-extending annular flange D of the casing D, beingprovided with a peripheral flange C to rest on said flange D.

In order to hold the ring C in position, a

metallic disk F is placed thereon, said disk being provided on its underside with a circular boss F entering the ring C.

The casing D is internally threaded to engage the externally-threadedcentrally-apertured cap G, the lower face of the cap having a recess Gconcentric with its aperture to receive the head H on the lower end ofthe valve-stem H and form a swivel connection. The valve-stem isprovided, as usual, with threads H engaging the threaded cap A.

The ring 0 is preferably formed of What is commonly known in the tradeas black-lead disks.

Having thus described my invention, what I claim is v The combination,with a valve easing formed at its lower end with an in wardly-extendingannular flange, of a ring seated on said casingdlange, a metal disk ontop of the said ring and provided with a projection fitting into thesaid ring, and acap screwing in the casing on top of the said disk,substantially as set forth.

JOHN WV. RANDALL.

Witnesses:

THEO. G. HOSTER, E. M. CLARK.

